Carrier SINGLE PACKAGE ROOFTOP UNITS 48PG20-28 Installation And Service Instructions Manual page 26
Single package rooftop units electric cooling/gas heating with electromechanical controls and puron (r-410a) refrigerant
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Also See for SINGLE PACKAGE ROOFTOP UNITS 48PG20-28:
- User's information manual (11 pages) ,
- Controls, start-up, operation, service and troubleshooting instructions (112 pages) ,
- User's information manual (10 pages)
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Table 12 — Fan Performance — 48PGE28 — Vertical Supply/Return Units
AIRFLOW
0.2
(Cfm)
Rpm
6,500
775
A
7,000
826
7,500
878
B
8,000
929
8,500
981
9,000
1033
9,500
1085
C
10,000
1137
10,500
1190
D
11,000
1242
11,500
1294
12,000
1347
12,500
—
AIRFLOW
1.2
(Cfm)
Rpm
6,500
B
1004
7,000
1041
7,500
1081
C
8,000
1124
8,500
1168
9,000
1214
D
9,500
1260
10,000
1308
10,500
1356
11,000
—
11,500
—
12,000
—
12,500
—
LEGEND
Bhp — Brake Horsepower Input to Fan
Boldface indicates field-supplied motor/drive required.
NOTES:
1. Motor drive ranges:
(A) Low Range: 687-873 rpm, 5.75 bhp
(B) Mid-Low Range: 805-1007 rpm, 5.75 bhp
(C) Mid-High Range: 941-1176 rpm, 8.63 bhp
(D) High Range: 1014-1297 rpm, 11.50 bhp
All other rpms require field-supplied motor or drive.
2. See page 36 for general fan performance notes.
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Bhp
Rpm
Bhp
2.43
825
2.75
A
2.98
875
3.22
3.60
B
925
3.89
4.31
975
4.73
5.11
1026
5.56
6.00
C
1076
6.49
6.98
1128
7.53
8.08
1179
8.66
9.28
1230
9.91
D
10.60
1282
11.28
12.04
1333
12.76
13.60
—
—
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
Bhp
Rpm
Bhp
4.11
1050
4.55
4.73
1083
5.15
C
5.44
1120
5.86
6.26
1160
6.68
7.17
1202
7.60
8.20
D
1245
8.64
9.33
1290
9.79
10.58
1337
11.05
11.95
1384
12.44
—
—
—
—
—
—
—
—
—
—
—
—
0.6
Rpm
Bhp
Rpm
A
871
3.05
915
918
3.58
959
B
B
966
4.28
1005
1015
5.11
1052
1064
5.97
1100
C
C
1114
6.94
1148
1164
8.00
1198
1214
9.18
1247
D
D
1265
10.46
1297
1316
11.86
1347
1367
13.39
—
—
—
—
—
—
—
1.6
Rpm
Bhp
Rpm
1098
5.04
1145
C
1126
5.62
1170
C
1159
6.32
1199
1196
7.13
1233
D
1235
8.06
1269
D
1277
9.10
1309
1320
10.25
1351
1365
11.53
1394
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
26
0.8
1.0
Bhp
Rpm
3.37
959
B
3.98
1000
4.69
1043
C
5.48
1088
6.37
1134
7.36
1181
8.45
1229
D
9.65
1278
10.12
10.97
1327
11.47
12.41
1376
12.93
—
—
—
—
—
—
1.8
2.0
Bhp
Rpm
5.57
1192
6.14
1214
D
6.82
1240
7.62
1270
8.54
1304
9.58
1341
10.09
10.74
1381
11.25
12.03
—
—
—
—
—
—
—
—
—
—
—
Bhp
3.72
4.34
5.05
5.86
6.76
7.77
8.89
—
—
—
Bhp
6.14
6.70
7.36
8.15
9.05
—
—
—
—
—
—
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Troubleshooting
